i notice something else what is strange
when i put memory to 1900 start the miner is hash around 750mh
when i increase the memory to 2000 (hash speed stay the same)
i close the miner start the miner again with 2000 i get 800mh (at 2000 it s unstable gpu crash after few minutes)
but i decrease the memory to 1900 it s till hashing at 800 (but same computer crash few minute later)
but why is that ? does the miner lock the memory speed ?
I got the same thing, changing memory speed while miner has already been run has no effect on the hashing speed.
I actually got it on ETH miner as well (only on 470 and only on one machine)... confusing.
this miner is fkdup and probably doesn't know how to count hashes. if you start it, then close it and then start again it may often improve your hashrate 2-3%
sgminer doesn't give me that much crap.
EDIT: for polaris I think the "-a 4 -h 1024" is the most stable. Still sgminer does better, I'm getting stable (~2%rejects) 705-710h for weeks(mixed 370 & 470 rig) on modded UV rx470 @about 900mv, core=1150 mem=1950 slightly less power than 9.7 with unstable 689-705) I have also one win10 where 9.7 won't even start, while 9.6 runs fine.
